Home / 648,116.80-972,175.20-332,605.60

Finding the Fourth Proportional to 648,116.80, 972,175.20 and 332,605.60

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Solution

The fourth proportional to 648,116.80, 972,175.20 and 332,605.60 is: 498,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,116.80 : 972,175.20 = 332,605.60 : x
  2. Step 2: Convert to fraction form
    648,116.80/972,175.20 = 332,605.60/x
  3. Step 3: Cross multiply
    648,116.80x = 972,175.20 × 332,605.60
  4. Step 4: Simplify right side
    648,116.80x = 323,350,915,701.12
  5. Step 5: Solve for x
    x = 323,350,915,701.12/648,116.80
  6. Step 6: Final answer
    x = 498,908.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.